"Toxocara canis"@en . . . . . . . . "Toxocara canis (also known as dog roundworm) is worldwide-distributed helminth parasite of dogs and other canids. Toxocara canis is gonochoristic, adult worms measure from 9 to 18 cm, are yellow-white in color, and occur in the intestine of the definitive host. In adult dogs, the infection is usually asymptomatic."@en . .